Global Patent Index - EP 1130023 A3

EP 1130023 A3 2002-09-11 - Process for preparing organosilylalkyl polysulfanes

Title (en)

Process for preparing organosilylalkyl polysulfanes

Title (de)

Verfahren zur Herstellung von Organosilylalkylpolysulfanen

Title (fr)

Procédé de préparation d'organosilylalkylpolysulfanes

Publication

EP 1130023 A3 (DE)

Application

EP 01103386 A

Priority

DE 10009790 A

Abstract (en)

[origin: EP1130023A2] Production of organosilylalkyl polysufides (I) by reacting an organosilylalkyl halide (II) with an anhydrous ionic sulfide (III) and elemental sulfur comprises adding (III) to a suspension of elemental sulfur and (II) in a polar organic solvent. Production of organosilylalkyl polysufides of formula (I) by reacting an organosilylalkyl halide of formula (II) with an anhydrous ionic sulfide of formula (III) and elemental sulfur comprises adding (III) to a suspension of elemental sulfur and (II) in a polar organic solvent: (R<1>R<2>R<3>SiR<4>)Sx (I) , R<1>R<2>R<3>SiR<4>X (II) and M2S (III) R<1>-R<3> = 1-8C alkyl, 1-8C alkoxy or aryl, at least one being alkoxy; R<4> = 1-8C alkylene or (CH2)n-C6H4-(CH2)n; n = 1-4; x = more than 1; X = Cl, Br or I; M = an alkali metal or ammonium cation or half an alkaline earth metal or zinc cation.

IPC 1-7 (main, further and additional classification)

C07F 7/18

IPC 8 full level (invention and additional information)

C07F 7/18 (2006.01)

CPC (invention and additional information)

C07F 7/1892 (2013.01)

Citation (search report)

[DA] DE 19734295 C1 19990225 - DEGUSSA [DE]

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1130023 A2 20010905; EP 1130023 A3 20020911; EP 1130023 B1 20040811; AT 273311 T 20040815; BR 0100803 A 20011106; CN 1186347 C 20050126; CN 1311187 A 20010905; CZ 20010684 A3 20011017; DE 10009790 C1 20010920; ES 2222279 T3 20050201; HU 0100921 A2 20011228; HU 0100921 A3 20020528; HU 0100921 D0 20010528; HU 222433 B1 20030728; IL 141711 A 20040219; IL 141711 D0 20020310; JP 2001270886 A 20011002; JP 4669139 B2 20110413; KR 100728512 B1 20070615; KR 20010086591 A 20010913; MX PA01002158 A 20021129; PL 346194 A1 20010910; RU 2259374 C2 20050827; TW I232864 B 20050521; UA 68389 C2 20010917; US 2001037034 A1 20011101; US 6465672 B2 20021015

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